Pith Number

pith:SKMBYSJX

pith:2015:SKMBYSJXURHF6ASAFAWLLXSCQR

not attested not anchored not stored refs pending

Clues about the first stars from CEMP-no stars

Andr\'e Maeder, Arthur Choplin, Georges Meynet

arxiv:1509.04446 v1 · 2015-09-15 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SKMBYSJXURHF6ASAFAWLLXSCQR}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:32:58.893275Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92981c4937a44e5f0240282cb5de4284488174a4e5081da5f6fb62ba61a1e46b

Aliases

arxiv: 1509.04446 · arxiv_version: 1509.04446v1 · doi: 10.48550/arxiv.1509.04446 · pith_short_12: SKMBYSJXURHF · pith_short_16: SKMBYSJXURHF6ASA · pith_short_8: SKMBYSJX

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/SKMBYSJXURHF6ASAFAWLLXSCQR \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 92981c4937a44e5f0240282cb5de4284488174a4e5081da5f6fb62ba61a1e46b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e3a700ea39d0b257aaadf9beac537d2f2f809d20c7e46112613192045a16f8b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-09-15T08:51:14Z",
    "title_canon_sha256": "de8ac95f7481900c5d01d6820cfc179836cb8dfbddb09986e111659e334fc226"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.04446",
    "kind": "arxiv",
    "version": 1
  }
}